Who Should Decide the Ideal Global Climate?

It is arrogant for certain people to decide that today's climate is the best climate for all other human beings, NASA Administrator Michael Griffin told NPR's Morning Edition.

Richard Alley, a geosciences professor at Penn State University, tells NPR's Michele Norris that humans are pushing climate change at a rate faster than in the past, and the ability to adapt will be more difficult. He says whether today's climate is the best or not, the changes are going to be expensive and painful for most human beings.

Alley, who specializes in climate change studies, says that it is likely that those who will get hurt first will be the poorest people on the planet.

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